A/N: Hello to all, as you know Doom Eternal has recently dropped and well, it was game that I've been waiting for ever since 2016's Doom was a masterpiece for me. I am not only a fan of the game itself but I am also the fan of the amazing lore and story that this rebooted Doom Trilogy holds. This story is going to be about the events in which took place in the codex leading up to Commander Valen's betrayal, starting from the Doom Slayer's arrival on Sentinel Prime. Please enjoy and feel free to PM me about some ideas and suggestions, feel free to leave some constructive criticism as well!


(Doom: The Dark Years)

(Prologue)

It was within a hellish location, yet it wasn't Hell the realm. The Slayer was protecting humanity from the future invasions of celestial beings known as Curators. These Curators were known to torture any living thing that they seen below them, and they multiplied several times.

The Slayer was currently in the midst of a brutal battle against the Chief Curator, the great warrior didn't know the name of The Curator, nor did he really care, but he wasn't going to let these wicked beings invade the innocents of Planet Earth, not a chance.

At the time, The Slayer could talk but very little. He previously saved Earth and other places across The Cosmos from demonic invasions, The Dark Realm was known to invade the furthest corners of the universe for their bloody campaigns to increase the demonic empire. He saved Mars before, he saved Earth before and now he was saving it once more before these Curators could even arrive.

His green armor had tears and rips in it, carrying around his combat shotgun with a split in the visor of his grey helmet. The Chief Curator carried around a staff tipped with some sort of black energy of some kind, it wasn't Argent as the glow wasn't red, but it was black.

"I won't let you take my world away from me, who the fuck do you think you are?" The Slayer growled in defiance, staring a hole right through The Chief, who itself showed no fear. The Chief didn't know that The Slayer had been the bane of Hell for quite some time, but even if he did know, he wouldn't be afraid.

"I'm not afraid of you, if anything, you fear me. You fear my conquest, you cannot save your world." The Chief growled as he pointed his staff towards The Slayer, the great warrior pointed his shotgun towards the face of The Curator.

The Curator didn't have a head, if anything it was an alien lifeform within a large shell made from a material of which was impenetrable to even bullets. The Chief Curator stood out from others of his kind, the Chiefs had three horns and were around ten feet tall. Two curving horns on the side and one in the middle that stood straight up, the Chiefs were typically old but Lord could they fight.

The Slayer pulled the trigger but only a clicking noise came out instead of an explosive bang, his eyes widened once he realized that his shotgun was out of shells and that there was no more. He had used it all up from his brutal campaign in The Curator's Temple.

"I don't need guns, guns are for wusses." The Slayer growled in frustration, throwing the combat shotgun to the side, regular shells wouldn't penetrate the armor of The Chief Curator anyway.

"You say that now." The Chief answered with a chuckle, this fired up The Slayer and caused him to rush towards him at full speed with a battle cry, only for the mighty celestial being to vanish into thin air through a portal.

The Slayer growled and looked around his environment, not seeing his foe anywhere he looked. He could still hear the taunting voice of The Chief, getting into his head.

"Fool, I am eternal. My coming is inevitable, shame you cannot stop me, shame you cannot save your people." He heard the cosmic being chuckle in his deep, thunderous voice.

"How about you stop hiding in the shadows like a pussy and fi-" The Slayer felt something penetrate through his body, and when he gazed down, he saw the tip of the dark staff in which The Chief carried around. The black energy tip seemed to have sucked in all of the blood that it took out when it went through his body.

The Slayer's eyes widened as traumatic memories of him fighting with the various demons through Hell to save Mars and Earth zoomed through his eyes and various times of failure and humility throughout his life before his demon slaying times began.

Strangely enough, he felt no pain, but he was indeed wounded as blood was pouring out of the hole in his body. Blood began to leak from his mouth as he turned his head to view the hideous face of The Chief.

"Look me in the eyes, fool. You are not as strong as you believe yourself to be, my time is eternal." The Chief growled, staring through the visor and into the brown eyes of The Slayer, but the defender of Earth wasn't so phased by this one single bit. He noticed an engraving on the forehead of The Chief, it was a glowing red symbol of infinity.

"Oh bullshit!" The Slayer screamed out furiously, slamming his fist hard into the glowing engraving, it burst into a thick layer of chunky lime green blood.

The Chief looked shocked as his engraving bled everywhere, reality around the two seemed to warp around almost instantly after it was destroyed by the brutish punch from The Slayer.

"What have you done!? I hate you!" The Chief screamed loudly as he allowed the badly wounded Slayer to fall to the cold ground, The Slayer seemed to be laughing.

"I love you too, fucking piece of shit."

This caused The Chief to open up a portal in time and send a huge blast of air right into The Slayer, pushing the great defender through and sending him to a place unknown to the Earthly warrior but a place that would become legendary in his past…


(Chapter 1: The Arrival)

Two Sentinel guards carefully watched over King Novik's Castle, until they saw what appeared to be a flash in the sky and a fireball rapidly plummeting down towards the valley just outside of the castle.

"Was that comet screaming?" One of the guards asked the other, the two climbed down the vines which would lead down into the valley. Creatures of Sentinel Prime were known to eat fallen and injured victims within this valley, it would be dead meat within a few minutes.

The supposed comet was none other than The Slayer himself, a portal had been opened by The Chief Curator in an attempt to send him as far away from Earth as possible. The Chief Curator was successful, but his campaign against Earth would be halted for several thousand years as his engraving stopped him from traveling through time like he did with his previous campaigns.

His wound felt like static, like his hand or foot had fallen asleep, except it was for his body. The Slayer began to laugh it off, he couldn't feel a damn thing despite how big the wound was, but the fall hurt him as his vision blurred in and out. His grey helmet slid off of his skull and tumbled down a rocky slope, hitting the bottom with a thud as his facial features were revealed.

Memories of his old days of fighting demons continued to flash through here and there, a memory shown him battling a tyrant demon at the top of the Tower of Babel, a location within Hell in which is a field of horrible pits in which these large demons with a rocket launcher for an arm served as masters for slaves. He remembered disobedient Barons that were hung from the wall within the middle chamber of the top of the tower.

His memory faded out when he saw a bright blue luminescence coming into the dark valley, loud shots of what seemed to be gunfire were heard and screeches of gargoyles were heard as they flew away from the fallen Slayer. He had no clue of what was going on, but he couldn't move for some reason.

When the bloodthirsty pack of gargoyles fled from the scene, the two sentinels approached him with their guns at the ready. One of them picked up the helmet and examined it, the helmet wasn't like any of theirs and the other one continued to march up the rocky hill to examine The Slayer.

"Is he hostile?" The guard examining the helmet asked his partner, The Slayer appeared dead with his eyes closed.

"I don't know, guy looks stoned as He-" Suddenly the guards sentence was cut off when the eyes of the Slayer suddenly popped open with a hateful growl on his face, causing the sentinel guards instincts to attack to kick in. The guard drilled the butt of his weapon right into the face of The Slayer, knocking him out cold.

"Let's take 'em to the priests, see what they think before sending him off to Novik." The sentinel guard who just knocked out The Slayer, spoke. His partner, who was examining the helmet, agreed to take this mysterious Outlander to the Order Deag.

As the two sentinels carried The Outlander up the hills that would lead down into the valley, he awoke once more while the guards frequently looked down on him. The stranger was bloodied, clawed and near death as his eyes faded in and out of consciousness.

"K-kill them... All.." The Outlander mumbled as the scouts continued to carry them, the two sentinel scouts had no clue of what this stranger to their lands was speaking of.

The iron scent of blood trailed The Slayer everywhere he was dragged as there appeared to be guts or innards of some kind on his bright green armor that was torn and ripped in many places. The scouts continued their journey with The Outlander towards the Outpost where Deag Ranak and Deag Nilox were waiting and practicing magic.

"Fuck you… Curator!" The Outlander mumbled aggressively, trying to raise his hoarse voice up but due to his injuries, it only came out as a guttural growl.

"What does, 'fuck you' mean?" One of the scouts asked the other, the other scout simply shrugged his shoulders, profanity or Earthly profanity was unknown to the people of Argenta and the sovereign worlds that they had under their belt.

"Some sort of ugly tongue I suppose."

The two sentinel scouts reached the gates of Sentinel Prime, headed towards The Blood Arena. A makyr angel stood guard with a small group of Night Sentinels overwatching the gate alongside the makyr angel, they all looked puzzled and some even disgusted by this stranger, this newcomer to their world. Thinking his armor to be of arcane origin and his words being absolutely nasty.

The gate was slowly opened by a sentinel guard, and the scouts continued to drag The Outlander towards the Deagic outpost. It was then that The Outlander spoke up once more as his eyes faded back into consciousness.

"Destroy.. Hell.. Must destroy it.." He mumbled again, the scouts had no clue of this 'Hell' that this stranger spoke of.

Eventually the three went down an elevator into the Deagic outpost where Ranak and Nilox were doing their own thing that was until the two priests saw the two sentinel scouts with The Outlander in their grasp. The Outlander regained consciousness once they reached the bottom of the elevator.

He saw the two priests up ahead, both wearing things over their heads. One appeared to be wearing a helmet of some kind and the other a crown, both priests were donned in ceremonial robes and carrying staffs in which reminded him of The Chief Curator.

Nilox and Ranak examined him from afar, The Outlander wore light green armor in which seemed to be charred in some areas and torn in other spots, an entrail of something unknown was sashed over the shoulder and the armor was also covered in numerous blood stains. His face was bruised up and scratched, the hair being brown and eyes being brown. Boots and leg wear seemed to be made of the same material as the armor on his torso. There was also a nasty gash in the solar plexus of The Outlander, suggesting that he had engaged in brutish combat with something mean outside the walls.

As he gazed up at the priests, he saw another image of the tyrant in which he fought at the top of the tower of Babel. There were numerous of these towers scattered throughout Hell, another being in Nekravol.

"We found him in the valley just outside the castle walls." One of the sentinel scouts spoke up of where they had found The Outlander, the other scout stepped towards Ranak with the helmet in his hand.

"He was badly wounded, and wearing this."

Ranak examined the helmet, it was for sure not of the planets and lands of Argenta. It had different ventilation than those of The Night sentinels and the training outfits, it appeared to also be made out of a different material. It didn't have a knight templar style look to it at all either.

The vision of the tyrant flashed through The Outlander's eyes once more, when he had slain the towering beast at the top of the tower within the black soul pits of Babel.

"...Guts, huge guts!" He growled as he looked at his gloved hands, remembering the entrails of the tyrant in which he pulled out, the red tubes from the torso that powered the beast, balling up his fists.

"Kill them...Must kill them all!" He finished, getting the attention of the two priests as they looked down at his body, giving them the sense that The Outlander was a real fighter and rightfully so.

"He has fight in him yet!" Ranak exclaimed with an impressed chuckle, Nilox was next to share his thoughts.

"In spite of his injuries." Nilox added on, seeing the cuts and gashes all over the body of The Outlander. Ranak handed the helmet back over to one of the sentinel scouts and gave them an order.

"Send him to the arena, let him be judged like the others."

With that being said, the two sentinel scouts began to drag the stranger away, headed towards the Coliseum. The Outlander overheard the conversation being held by the two sentinel scouts as they continued to drag him closer and closer to the Blood Arena.

"He won't last a second in there, look at his armor, all torn and damaged."

"Exactly, it isn't suited for the lands of Argenta. He will die before the day is out."

Bastards, they don't know me at all, thought The Slayer as they continued to drag him closer towards his place of judgement. He didn't give a damn if he was in another world, he would prove them all wrong just as he proved the UAC when he rescued them from another demonic invasion.

Several others were within the fighting arena, training to earn their worth and a spot in the Night Sentinels, to serve on the frontlines against enemies, for the service of Argent D'Nur. Within the next few minutes, the two sentinel scouts and The Slayer were at the foot of the gigantic coliseum.

At this point, the anger of being sold short by the two sentinels woke up this stranger, this outsider to the lands of the Argenta. Sentinel Prime had a beauty to it in The Slayer's eyes, the skies, the architecture of Argent D'Nur was beautiful and the sovereign lands. The large red planet or moon that was not too far from this land of Argent D'Nur, the mountains in which these buildings of Sentinel Prime were built upon, the cool wind blowing through his brown hair. It was all relaxing, but the anger remained within his being.

The three stood in front of a tunnel which would lead into the coliseum, there were cages within the walls, Argent energy bars instead of iron ones. One of the sentinels looked down at The Outlander and forcefully jerked him back to his feet.

"On your feet." The sentinel growled aggressively, this caused the anger within The Outlander to only build up further. He didn't like being disrespected and roughhoused by people he should be respected by, The Slayer knew he wasn't of omnipotent power (At least not yet), but for all the people he saved, these bastards were treating him like dirt.

"Let's move." The other sentinel scout said as they began to march The Slayer towards the tunnel, a crowd of Argentians berated and cursed in their own tongue at this outsider whose hands were tied in chains.

The Slayer saw that these people did not take new blood well, everyone despised and looked down on the ones that they saw as weak. A smirk seemed to crack across the rage filled scowl of The Outlander, boy, he was about to prove these idiots wrong.

As they entered the tunnel, the furious people of Argent D'Nur followed after them and continued to berate The Outlander. It got to such a point that the gate needed to be closed, the tunnel was shut off. Deag Grav emerged from the armory from the room right next to the actual fighting arena to investigate the issue only to see a stranger in chains.

Deag Grav was an arrogant son of a bitch, he laughed at failure, he smirked at the humiliation of others and relished in taunting the weak or poor. Even some of the sentinels disliked the priest, even Ranak didn't seem to like Grav, but the relationship between the Order of the Deag would get almost unbreakable when they became Hell Priests.

"Well then, what do we have here?" Grav asked, judging The Slayer as he got close to him, carefully examining his physique and appearance.

"Arcane armor, clothing, are you even of Argenta origin?" The priest asked, sounding hateful, despising this outsider that was in chains before him.

"Nowhere close, send me in there. I'll give you a present." The Slayer growled with a sadistic grin on his face, he was just itching to beat somebody's ass, anybody that would step up to the plate would be in line for an ass kicking.

"A present, how nice of you. Send this fool to the arena, I'm looking forward to this…" Deag Grav spoke in response, sounding very sarcastic in his tone of voice.

The sentinels gave The Outlander a forceful shove on his back, pushing him towards the gates of the coliseum. Deag Grav began to make his way into the coliseum via another entrance while the elevator began to lower The Slayer down into the arena.

The great warrior looked up to see a large engraving of what appeared to be an angelic figure with a few lesser ones behind it, the big angel was handing a ball of light to the king and a hooded figure stood behind him with Night sentinels standing watch. This intrigued The Slayer as the elevator hummed loudly, lowering into the arena.

The Slayer saw several men training with each other, striking each other with fists and some were training with swords. Night Sentinels stood watch over them, once The Outlander arrived, all of the eyes directed their attention towards them.

The room fell into a dead silence, The Slayer could feel the eyes upon him, he felt himself being judged from skin to his identity. He decided to break the awkward silence after everyone had stopped their training.

"I've been sent here. I've come to prove myself to all of you fools."

The whole room was filled with laughter, the prisoners fighting to regain honor thought this newcomer to be ridiculous. With the nasty wound he had on his gut, there was no way he could fight, but the laughter and ridicule was silenced when The Slayer unleashed his fury on them in words, just a fraction of his wrath.

"Keep quiet you fools! I can beat all of you, every single one of you. One on one, I've destroyed things you can't even touch!" The Slayer roared, veins bulging from his neck and his face turning red from how loud he was yelling, his voice echoed like thunder throughout the large chamber.

The Outlander entered the chamber in a one versus all scenario. The room was cold and unforgiving to the ones duking it out within it, night sentinels looked on at the gates, making sure none would pussy out of it. The room remained silent ever still.

"You call this a wound? It's only a damn scratch to me, don't judge me when you don't know the things I've broken like toys. Look into my eyes and you can see the horrors I've seen, feel the pain as I crack your skulls with my bare fists and you will know the things I've struck. I take pity on you all, your arrogance is mildly amusing at best!" The Outlander continued to scream and destroy his opposition with words, these new strangers in an unknown world.

"Save your words, you're losing more and more energy as you spit those vile words. If you want to prove that you are as great as you are, then take all of them on one by one, let us see if you got what it takes." Deag Grav laughed as he entered through a gate, taking a stand beside one of the sentinel guards.

"Oh believe me, he is all bark and no bite. There's no way he can get through all of us…" One of the prisoners laughed, The Slayer directed his attention to said prisoner.

"Watch me…"